No.

Centrality

Keyword

Year

1

0.61

Library

2016

2

0.41

University libraries

2014

3

0.38

Think tank service

2016

4

0.31

Think tank

2015

5

0.24

Think tank construction

2016

6

0.22

Information service

2016

7

0.21

Colleges and universities

2018

8

0.21

Discipline service

2018

9

0.21

Big data

2017

10

0.15

New type of think tanks

2018